/*********************************************************************
*
* Software License Agreement (BSD License)
*
*  Copyright (c) 2010, Heriot-Watt University, UK.
*  All rights reserved.
*
*  Redistribution and use in source and binary forms, with or without
*  modification, are permitted provided that the following conditions
*  are met:
*
*   * Redistributions of source code must retain the above copyright
*     notice, this list of conditions and the following disclaimer.
*   * Redistributions in binary form must reproduce the above
*     copyright notice, this list of conditions and the following
*     disclaimer in the documentation and/or other materials provided
*     with the distribution.
*   * Neither the name of the Heriot-Watt University nor the names of
*     its contributors may be used to endorse or promote products
*     derived from this software without specific prior written
*     permission.
*
*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
*  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
*  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
*  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
*  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
*  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
*  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
*  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
*  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
*  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
*  ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
*  POSSIBILITY OF SUCH DAMAGE.
*
*  Author: Joel Cartwright
*
*********************************************************************/

#include <matchmaker/service_id.h>

namespace matchmaker {


ServiceID::ServiceID(const std::string & stringID)
{
  size_t pos = stringID.find(SEPARATOR, 0);
  if (pos == std::string::npos) {
    ROS_ERROR_STREAM("Failed converting string to ServiceID: " << stringID);
    return;
  }

  // Check we have at least one character before and after separator.
  if (pos == 0 || pos == stringID.length() - 1) {
    ROS_ERROR_STREAM("Failed converting string to ServiceID: " << stringID);
    return;
  }

  providerName_ = stringID.substr(0, pos);
  topic_ = stringID.substr(pos+1, stringID.length()-(pos+1));
}


ServiceID::ServiceID(const std::string & providerName, const std::string & topic)
{
  providerName_ = providerName;
  topic_ = topic;
}


ServiceID::~ServiceID()
{

}


bool ServiceID::operator<(const ServiceID& rhs) const
{
  if (providerName_ != rhs.providerName_) return providerName_ < rhs.providerName_;
  else return topic_ < rhs.topic_;
}


bool ServiceID::operator==(const ServiceID& rhs) const
{
  return providerName_ == rhs.providerName_ && topic_ == rhs.topic_;
}


bool ServiceID::operator!=(const ServiceID& rhs) const
{
  return providerName_ != rhs.providerName_ || topic_ != rhs.topic_;
}


std::string ServiceID::toString() const
{
  return providerName_ + SEPARATOR + topic_;
}


bool ServiceID::isValid() const
{
  return providerName_.length() > 0 && topic_.length() > 0;
}


} // namespace
